The IPC09 was realy inspiring. Here some links to the slides:

• Nice slides explaining software metrics: manuel-pichler.de/archives/65-Softwaremetriken-verstehen-und-nutzen.html
• The state of QA Tools for PHP: www.slideshare.net/sebastian_bergmann/the-state-of-quality-assurance-tools-for-php
• www.slideshare.net/sebastian_bergmann/analysing-php-code
• www.slideshare.net/sebastian_bergmann/continuous-inspection-and-integration-of-php-projects
• www.slideshare.net/sebastian_bergmann/cool-objects-sleep-on-the-couch
• Stress free Deloyment: akrabat.com/talks/
• Charsets & Encodings (via kore-nordmann.de/portfolio.html)
• CouchDB, PHPillow & PHP (via kore-nordmann.de/portfolio.html)